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Image Scaling using get_the_post_thumbnail issue in WordPress

ALWAYS REGENERATE SOURCE SET ON IMAGE EDIT (New material, especially the custom function, follows conversation in comment thread.) The following function automatically regenerates a full source set after an image edit action. /** * ALWAYS REGENERATE FULL SOURCE SET AFTER EDITING IMAGE * answering StackExchange WordPress Development Question * see: https://wordpress.stackexchange.com/questions/288581/image-scaling-using-get-the-post-thumbnail-issue-in-wordpress/ * exploits code already … Read more

wp_get_attachment_image_src problem

Try using the Regenerate Thumbnails plugin, that will run through all your media and regenerate thumbnails according to the registered image sizes. Also note that that you’re getting the hight parameter as 226 because during add_image_size your third parameter said to not crop the image. Change that to true if you need cropping.

Cropped featured image replaces original image in gallery

It sounds as if your client is savvy enough with an image editing program. Just thinking out loud here, but you could add a custom meta box and have the client upload 2 images. 1 – The smaller image that puts the focus where they want it 2 – The large image, to be used … Read more

get_the_post_thumbnail_url with an unregistered size

WordPress does not create any thumbnail on the fly. If you try to fetch a size that doesn’t exist, either the closest size or the full size image will be retrieved. The closest solution you can try is to fetch a size larger than what you want, and then size it down via CSS and … Read more

Auto-modifying original [full size] images

Yes, there is. Found here: http://www.wprecipes.com/how-to-automatically-use-resized-image-instead-of-originals It will replace the original picture with the large size, defined in Media Settings (/wp-admin/options-media.php). Here’s the code: add_filter(‘wp_generate_attachment_metadata’,’replace_uploaded_image’); function replace_uploaded_image($image_data) { // if there is no large image : return if ( !isset($image_data[‘sizes’][‘large’]) ) return $image_data; // paths to the uploaded image and the large image $upload_dir = … Read more

WP 3.5 and Galleries – how to count images?

This works: $images = get_children( array( ‘post_parent’ => $post->ID, ‘post_type’ => ‘attachment’, ‘post_mime_type’ => ‘image’, ‘orderby’ => ‘menu_order’, ‘order’ => ‘ASC’, ‘numberposts’ => 999 )); if ( $images ) { $total_images = count( $images ); } The variable $total_images will hold the count of images in your gallery.

How to resize images in wordpress without adding any compression or changing the color profile of the images, possible?

You can try looking at this plugin WordPress ImageMagick Engine Replaces wordpress image resizing from GD to ImageMagick. You need a compatible host to use it though

Why should I use “Organize my uploads into month- and year-based folders” option? (Cons/Pros)

This is one of the many optional features in WordPress.There is no real benefit in using any of these 2 structures, but here is some details for you: Organization: When you are building a website which will have a lot of uploads, it is always a good option to go for the year / month … Read more

Change WordPress image URLs via filter

You will most likely want to use filters. The main issue is that developers will need to make sure to use the correct functions like “the_post_thumbnail()” etc. You can use wp_get_attachment_url https://codex.wordpress.org/Function_Reference/wp_get_attachment_url I use this when doing local development, but want all my local images to load from the Production server as I don’t have … Read more

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